If you have the Wild Wasteland trait and Rex is your companion, sometime during the game he will bark at you and, if you talk to him while he is doing this, you can use a unique dialogue option to ask if a boy is in a well; he will respond by barking and a marker will be placed on your map.

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If the Courier visits the area before being alerted by Rex, the well will not be there, similar to Ranger Morales' corpse. Inside the well, along with a living mole rat, is a small, child-sized skeleton.

Rex alerting you to the location and the location itself are references to the television show Lassie.

A similar series of events takes place in Fallout 2. In Modoc, a boy named Jonny is missing. His dog will indicate that the Chosen One should look in the town well. After climbing down into the well, Jonny's BB gun can be found in the northern portion of the tunnels. Jonny himself, however, has been captured by the Slags, and can be found in their underground cistern.